Buggy code:
public class JRootApp extends JPanel implements AppView { private AppProperties m_props ; private Session session ; private DataLogicSystem m_dlSystem ; private Properties m_propsdb = null ; private String m_sActiveCashIndex ; private int m_iActiveCashSequence ; private Date m_dActiveCashDateStart ; private Date m_dActiveCashDateEnd ; private String m_sInventoryLocation ; private StringBuilder inputtext ; private DeviceScale m_Scale ; private DeviceScanner m_Scanner ; private DeviceTicket m_TP ; private TicketParser m_TTP ; private Map < String , BeanFactory > m_aBeanFactories ; private JPrincipalApp m_principalapp = null ; private static HashMap < String , String > m_oldclasses ; private String m_clock ; private String m_date ; private Connection con ; private ResultSet rs ; private Statement stmt ; private String SQL ; private String sJLVersion ; private DatabaseMetaData md ; private SimpleDateFormat formatter ; private class PrintTimeAction implements ActionListener { @ Override public void actionPerformed ( ActionEvent evt ) { } } private String getLineTimer ( ) { } private String getLineDate ( ) { } public JRootApp ( ) { } public boolean initApp ( AppProperties props ) { } private String readDataBaseVersion ( ) { } public String getDbVersion ( ) { String sdbmanager = m_dlSystem . getDBVersion ( ) ; <START_BUG> if ( "HSQL<seq2seq4repair_space>Database<seq2seq4repair_space>Engine" . equals ( sdbmanager ) ) { <END_BUG> return "h" ; } else if ( "MySQL" . equals ( sdbmanager ) ) { return "m" ; } else if ( "PostgreSQL" . equals ( sdbmanager ) ) { return "p" ; } else if ( "Oracle" . equals ( sdbmanager ) ) { return "o" ; } else if ( "Apache<seq2seq4repair_space>Derby" . equals ( sdbmanager ) ) { return "d" ; } else if ( "Derby" . equals ( sdbmanager ) ) { return "d" ; } else { return "x" ; } } public void tryToClose ( ) { } @ Override public DeviceTicket getDeviceTicket ( ) { } @ Override public DeviceScale getDeviceScale ( ) { } @ Override public DeviceScanner getDeviceScanner ( ) { } @ Override public Session getSession ( ) { } @ Override public String getInventoryLocation ( ) { } @ Override public String getActiveCashIndex ( ) { } @ Override public int getActiveCashSequence ( ) { } @ Override public Date getActiveCashDateStart ( ) { } @ Override public Date getActiveCashDateEnd ( ) { } @ Override public void setActiveCash ( String sIndex , int iSeq , Date dStart , Date dEnd ) { } @ Override public AppProperties getProperties ( ) { } @ Override public Object getBean ( String beanfactory ) throws BeanFactoryException { } private static String mapNewClass ( String classname ) { } private static void initOldClasses ( ) { } @ Override public void waitCursorBegin ( ) { } @ Override public void waitCursorEnd ( ) { } @ Override public AppUserView getAppUserView ( ) { } private void printerStart ( ) { } private void listPeople ( ) { } private class AppUserAction extends AbstractAction { private final AppUser m_actionuser ; public AppUserAction ( AppUser user ) { } public AppUser getUser ( ) { } @ Override public void actionPerformed ( ActionEvent evt ) { } } private void showView ( String view ) { } private void openAppView ( AppUser user ) { } public void exitToLogin ( ) { } public boolean closeAppView ( ) { } private void showLogin ( ) { } private void processKey ( char c ) { } private void initComponents ( ) { } private void m_jCloseActionPerformed ( ActionEvent evt ) { } private void m_txtKeysKeyTyped ( KeyEvent evt ) { } private Box . Filler filler2 ; private JLabel jLabel1 ; private JLabel jLabel2 ; private JPanel jPanel1 ; private JPanel jPanel2 ; private JPanel jPanel3 ; private JPanel jPanel4 ; private JPanel jPanel5 ; private JPanel jPanel8 ; private JScrollPane jScrollPane1 ; private JButton m_jClose ; private JLabel m_jHost ; private JLabel m_jLblTitle ; private JPanel m_jLogonName ; private JPanel m_jPanelContainer ; private JPanel m_jPanelDown ; private JPanel m_jPanelLogin ; private JPanel m_jPanelTitle ; private JTextField m_txtKeys ; private JPanel panelTask ; private JLabel poweredby ; }

Fix:
if ( ( "HSQL<seq2seq4repair_space>Database<seq2seq4repair_space>Engine" . equals ( sdbmanager ) ) | ( "HSQLDB" . equals ( sdbmanager ) ) ) {